80 HYDROPHYLLACE-E. (WATERLEAF FAMILY.) 



Var. tenera, Gr., is a depauperate form; frequently the peduncles only 1 -flowered. 



23. G. tricolor, Benth. A span to a foot or two high, in age diffusely branched; 

 flowers few, in loose, rather short-peduncled clusters; corolla with a very short proper 

 tube and an ample campanulate throat which is pale yellow or orange below, dark pur- 

 ple above; the lilac or violet lobes longer than the stamens. 



24. G. iiiconspicua, Dougl. A span to a foot high, somewhat viscid or glandular; 

 corolla violet-purple or bluish, twice or thrice the length of the calyx, but small, the 

 lobes only a line long. It passes by gradation into 



Var. sinuata, Gr., with the tube of the corolla more slender and exserted and the 

 lobes often 2 lines long. 



3. POLEMONIUM. Tourn. 



Flowers as in Gilia, Eugilia, but the corolla short and broad, the stamens somewhat 

 declined, the filaments hairy appendaged at the base. Calyx herbaceous, its divisions 

 and those of the pinnate leaves pointless. 



1. P. caeruleum, L. (GREEK VALERIAN. ) Smooth or viscid-pubescent, 2 or 3 ft. 

 high, leafy, usually bearing numerous flowers; corolla an inch or more across, bright blue 

 varying to white; stamens and style exserted. 



ORDER 39. HYDROPHYLLACE.ffi. 



Inflorescence usually scorpioid; flowers perfect, regular, 5-androus, the two styles dis- 

 tinct at least at the apex; stigmas terminal, small, capitate. Only in Romanzoffia are 

 the stigmas as well as the styles united. Ovary commonly hispid or hirsute, at least at 

 the top. Mostly herbs, with alternate or rarely opposite leaves and no stipules. 



Tribe 1. HYDROFHYLLE-SI. Ovary and capsule 1-celled. Style 2-cleft. 

 Corolla almost always convolute in the bud. Herbs. 



Flowers solitary or loosely racemose. 



Calyx with reflexed appendages Nemophila. 1 



Calyx naked at the sinuses Ellisia. 2 



Tribe 2. FHACELIE-SJ. Ovary 1-2-celled. Style 1-2-cleft. Corolla imbricated in 

 the bud. Calyx naked at the sinuses. Herbs. 



Corolla not yellow, deciduous Phacelia. 3 



Corolla yellow, persistent Enameiiaiithe, 4 



Style and stigma entire Romanzoffia. 5 



Tribe 3. NAME-33. Ovary, capsule, dehiscence, etc., nearly of Phaceliece. Styles 



distinct to the base, stigmas capitate. 

 Low shrubs . . Eriodictyon. 6 



